When you hear a question, you should decide on the correct answer from the 4 choices marked A, B, C and D.
A. In a shop.
B. At school.
C. In a bank.
D. In a restaurant.
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When you hear a question, you should decide on the correct answer from the 4 choices marked A, B, C and D.
A. The woman does not enjoy the party.
B. The woman does not want to go to the party alone.
C. Jim didn’t attend the party.
D. Jim is at the party with the woman.
When you hear a question, you should decide on the correct answer from the 4 choices marked A, B, C and D.
A. 8:00 p.m.
B. 10:00 p.m.
C. 7:00 p.m.
D. 9:00 p.m.
When you buy something and pay for it with bills or coins, you are paying 1_____. If you don’t have a2_____of bills and coins that exactly equals the price of the item, you may give the salesperson too much money. He or she will then give some money 3 ____you. The money you get back is called change. Look at this example.Your husband is buying a color4_____. The total price is $244.90. He gives the salesman $250.00—two hundred-dollar bills and one fifty-dollar bill. The salesman gives him back a 5_____and a dime. Your husband’s change is $5.10.
多级放大电路的放大倍数是每一级放大电路放大倍数的乘积(带负载时)。
A. 对
B. 错